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Effect of gamma irradiation on the polymer electrolyte PEO-NH4ClO4

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Abstract

Irradiation affects the structures of materials at different scales, thus changing physical and chemical properties. We study here the effect of gamma irradiation at different doses on the polymer electrolyte PEO-NH4ClO4. Optical micrographs show cracks in the irradiated samples and impedance spectroscopy measurements indicate reduced ion-conductivity at room temperature but slight enhancement at higher temperature. At high frequencies, the real part of the admittance shows a power-law variation; the exponent, which is a measure of self-similarity of the structure, is reduced on irradiation. The overall results point to a more disordered structure at higher radiation doses.

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Acknowledgements

The authors are grateful to University Grants Commission Department of Atomic Energy for supporting this work. It is a pleasure to thank Sukhen Das for assistance in microscope imaging.

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Authors and Affiliations

  1. Condensed Matter Physics Research Centre, Physics Department, Jadavpur University, Kolkata, 700032, India

    Mrinal Sinha, M. Maitra Goswami, D. Mal, T. R. Middya & S. Tarafdar

  2. Variable Energy Cyclotron Centre, 1/AF Biddhannagar, Kolkata, 700064, India

    Udayan De

  3. Kolkata Centre, UGC-DAE Consortium for Scientific Research, PL-8, BL-LB, Sector III, Kolkata, 700098, India

    Sandip Kumar Chaudhuri & D. Das

Authors
  1. Mrinal Sinha
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  2. M. Maitra Goswami
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  3. D. Mal
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  4. T. R. Middya
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  5. S. Tarafdar
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  6. Udayan De
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  7. Sandip Kumar Chaudhuri
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  8. D. Das
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Correspondence to S. Tarafdar.

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Sinha, M., Goswami, M.M., Mal, D. et al. Effect of gamma irradiation on the polymer electrolyte PEO-NH4ClO4 . Ionics 14, 323–327 (2008). https://doi.org/10.1007/s11581-007-0172-1

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  • DOI: https://doi.org/10.1007/s11581-007-0172-1

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